MTHTrains HO 4-8-8-2 Cab Forward Steam Engine Engineer's Manual
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MTHTrains HO 4-8-8-2 Cab Forward Steam Engine Engineer's Manual

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M.T.H. HO 4-8-8-2 Cab Forward
Steam Engine
(PS 3.0)
ENGINEER'S GUIDE
3
Congratulations! You've just purchased the most
feature-rich and technically advanced HO Steam
locomotive ever produced! This highly detailed
model includes a broader range of features than
you'll find on any other HO scale steam, including
smooth performance from a three-scale-mile-per-
hour crawl to full throttle; "cruise control" for
steady speeds regardless of curves, switches and
grades; built-in decoders for DCC and the M.T.H.
Digital Command System (DCS); and a full range
PFA
of prototypical sounds. If you're looking for motive
Passenger/Freight
Announcements
power that's accurately detailed, smooth running,
and a great deal of fun to operate, it doesn't get any
better than this!
PLEASE READ BEFORE USE AND SAVE

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Summary of Contents for MTHTrains HO 4-8-8-2 Cab Forward Steam Engine

  • Page 1 M.T.H. HO 4-8-8-2 Cab Forward Steam Engine (PS 3.0) ENGINEER’S GUIDE Congratulations! You’ve just purchased the most feature-rich and technically advanced HO Steam locomotive ever produced! This highly detailed model includes a broader range of features than you’ll find on any other HO scale steam, including smooth performance from a three-scale-mile-per- hour crawl to full throttle;...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Quick Start Guide ........... . . 3 Unpacking Your Engine .

  • Page 3: Quick Start Guide

    Step 5: Turn the throttle and move out CAUTION: M.T.H. HO engines DO NOT OPERATE ON AC VOLTAGE. Applying AC power to your locomotive could cause permanent damage and will void your warranty. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 4: Unpacking Your Engine

    For those who prefer not to use traction tires. Nut Driver (1) In case you want to install the drivers with traction tires or replace the standard drive wheels. Couplers (2) with Mounting Hardware Engine Coupler Tender Coupler M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 5: Product Overview

    With this incredible new feature you have variable control over the steam whistle sound in your locomotive (when operated in DCS mode with the DCS Commander or DCS software version 4.0 or greater). M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 6 There are so many more things to learn and enjoy about the engine, we could write a book. But, that's no fun. So, if you haven't already done so, flip to the Quick Start Guide and let's run your new engine!! M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 7: Engine Diagram

    Your HO Steam Engine features our new wireless close-coupling drawbar! To attach the engine to the tender, simply insert the prongs of the drawbar into the receiver as depicted in the images above. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 8: Set-Up

    - Align the hole in the draft box with the tapped hole on the underside of the pilot and attach the draft box using the mounting screw that is supplied in the packaging. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 9: Connection Of The Engine And Tender

    3mm nut driver tool we provided in the box, carefully remove the drive rod screws (2) on the set of drive wheels located 2nd from the rear. There's one on each side. Left Wheel M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 10 They are critical to the proper operation of your engine and you don't want to drop them. Next, look closely at the wheel set and bushings and take note of their orientation. Driver springs M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 11 Reinstall Gear Box Cover Reinstall the chassis bottom cover with 5 screws and install the drive rod screws. See, you've done it. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 12: Lubrication

    2 screws from the gearbox cover and re-grease using M.T.H. gear grease or equivalent. Lubricate Axles (L) Removing Tender Body Unscrew to remove tender body M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 13: Features And Operation

    If you want to start your engine, just press “START UP” or, to turn the smoke on or off, just press “SMOKE.” No combinations of letters or numbers to remember! We think you're really going to like this! M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 14: Dcs/Dcc Switch

    DCC, the engine will not respond to the DCS commands. CAUTION: Do not apply DCS signals and DCC signals to the same track simultaneously. The signals are not compatible; mixing the DCS and DCC signals will damage the DCS TIU unit. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 15: Analog Dc (Standard Dc Power Pack)

    You should notice the speed remains constant up and down grades, around curves, and with varying loads. This is no accident. You've got the most precise speed control system available today. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 16 Add Smoke Fluid Running the engine without a primed smoke unit may cause damage Wick in Wick in Poor Good Smoke Unit Cover Condition Condition NOTE: Only add smoke fluid to the first smoke stack M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 17 The tender back-up light only illuminates when in reverse, even if you're not moving. It goes off when in forward. This is really handy since you'll always know which direction the model will move next. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 18 PFA, engine sounds on/off, master volume, Doppler, and more. Here's a brief description of commonly used sound features. F1 - Bell Toggles bell sounds on/off. Listen to the last half ring of the bell when it stops! M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 19 It works like a volume slider – The first time you enable F6 it goes up and stops at 100%, toggle F6 off then back on and it will go down to 0 and stop. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 20 The manual smoke potentiometer under the control hatch (on top of the tender) must be fully clockwise for the F12 key to function. When the smoke potentiometer is fully counterclockwise, the smoke is always off. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 21 Doppler Effect perfectly. Press the F21 button again (disable F21) to shut off the Doppler Effect. With a little practice in timing and speed you can make this happen right in front of you. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 22 F27 button (enable F27) will disable the Cab Chatter. Pressing the F27 button again (disable F27) will enable Cab Chatter. Cab Chatter is On by default. F28 – Feature Reset Resets Features to defaults. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 23: Start-Up/Shut-Down

    Idle Sequence 2 Idle Sequence 1 Extended Start-Up Extended Shut-Down Labor Chuff Drift Chuff One Shot Doppler Coupler Slack Coupler Close Single Horn Blast Engine Sounds Brake Sounds (On/Off) Cab Chatter (On/Off) Feature Reset M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 24 This is like a mixer so you can set up the engine fit your specific tastes and sense of realism. Oh, they all move relatively up or down with the master volume settings. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 25 Please refer to your DCS Manual for definitions and further explanation on how softkeys are utilized in your PS3.0- equipped engine. The following section(s) are lighting diagrams. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 26: Configuration Variables

    CV115- MTH Function Assignments – See table of supported CV’s and manual section on how CV170 to re-arrange them for further information 1. CV52, bit0 must = 1. This will enable PWM Mode. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 27: Cv29

    3. In the following steps you will need to write values to CV17 and CV18 to tell the engine what the long address should be In order to determine your required values for CV17 and CV18 you will need to go to http://extranet.M.T.H.-railking.com/pdfapp/ pdfs/instruction/HO%20DCC%20addressCV17_18%20Converter.xls M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 28: Feature/Factory Reset

    • Send a decimal 128 to reset only address values back to factory default • This is the same as writing 55 to CV55 to engine address 55 NOTE: The engine address has to be something other than address 55 M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 29 55 on your DCC handheld and sending a value of 55 to CV55. Again, M.T.H. engine’s will listen to the 55-55-55 reset command even though the engine’s address isn’t actually 55 (and it can’t be for the 55-55-55 reset to work). M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 30 Cab Chatter On/Off Low Byte 0-255 Alternate Speed Curve Step 27 Feature Reset High Byte 0-255 Alternate Speed Curve Step 28 Feature Reset Low Byte 0-255 Reverse Trim 0-255 User ID #1 0-255 User ID #2 M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 31 Beacon (Alt Lighting/Country) SCRIPTS Extended Shut Down Extended Start Up ELECTRIC SMOKE Electric Boiler Start-Up Start Up/Shut Down Electric Pressure Release Train Wreck Trolley Manual Mode Trolley Random Stops Trolley Learn Mode Trolley Auto Mode M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 32 3. Write a value of 18 to CV25. Your engine will now use the speed curve #18 below 4. If you want to create your own speed table using CV's 67-94 then write a value of 0 or 1 to CV25 M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 33: Cv Programming

    CV contents on the keypad. For example, to program a CV with the value 128, enter 12 on the keypad then press the function key to tell the engine that a number greater than 79 is being entered M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 34 MTH engines support both New and Old Motorola formats. For the Old Motorola format the Function/Off button on the Marklin 6021 controller toggles Start-up/Shut-Down. For the New Motorola format the Function/Off button on the Marklin 6021 Controller toggles the Headlight/Taillight and F1-F4 are supported. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 35 6 and then you can use Function/Off and F1-F4 to control functions F5-F9. The same applies to consists as they would be consist address + 1. Also, you can re-map F5-F9 via CV123-CV130. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 36: Advanced Consisting

    • Setting CV21 and CV22 determine which F Functions the consist responds to See diagram below for example Engine 1 - Front Engine 2 - Middle Engine 3 - Rear Normal Forward Direction of Travel M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 37 10. Ensure F5 and F0 are toggled OFF. You may have to toggle F5 on/off a couple times to get the lights in sync with the DCC command station. This will depend upon your DCC system M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 38 CV21's bits are shown in the table below – the decimal value is shown in parenthesis: (Decimal 7 (128) 6 (64) 5 (32) 4 (16) 3 (8) 2 (4) 1 (2) 0 (1) Value) Function M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 39: Programming Track

    4 (16) 3 (8) 2 (4) 1 (2) 0 (1) Value) Binary 1 (on) 1 (on) 1 (on) 0 (off) 1 (on) 1 (on) 0 (off) 0 (off) 1 (on) Example Decimal Value M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 40 (decimal value = 128) for the engine you want to reverse. To do this - take 128 (the new bit you want to set) + 5 (the existing bit that you do not want to alter) = 133. You would then write a value of 133 to CV19. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 41: Specifications

    DCC - Digital Command Control DCS - Digital Control System Default Addresses DCC short DCC extended Cab No. or 3333 US PATENTS US 6,457,681 Oct. 2, 2002 US 6,619,594 Sept. 16, 2003 US 6,655,640 Dec. 2, 2003 M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 42: Recommended Transformers

    CRE-55401 Controller PWM Output from this power supply DAMAGE Will the TIU * Use 22 volts maximum track voltage when operating a MTH locomotive equipped with Proto-Sound, Loco-Sound, Proto-Sound 2.0, or Proto-Sound 3.0 M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 43: Care And Maintenance

    Low or Med. With the engine running in DCS or DCC set the smoke back to High. It’ll remember what you last set it as when you run it again in Conventional DC M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 44 Check to see if you have any kind of binding on the side rods. There may be a chuck of your favorite, perfectly scaled pine tree stuck in there. M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 45 DCS mode you may have toggled it there (If you don’t have F17 on your DCC handheld you will have to put it back into DCS mode and change it from there) M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 46 Shut Down Solution Okay, I give up. What do I have to do Well, you can either remove power to shut it down? from the track or press F3 again M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 47 This is normal. You will need to press the Doppler shift but then the engine Doppler button again to turn Doppler off. Your sounds fade out and I can’t get them engine sounds will now return to normal back M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...
  • Page 48 Okay, I give up. What do Well, you can either remove power from the track I have to do to shut it or press or press Shut-Down. Button on the DCS down? Remote M.T.H. HO 4-8-8-2 Cab Forward Steam Engine...

  • Page 49: Service And Warranty Information

    M.T.H. Electric Trains. The manufacture date of an item can be verified on the item's detail page “shipping date field” on the M.T.H. website (www.mthtrains.com). This warranty does not cover damages caused by improper care, handling, or use. Transportation costs incurred by the customer are not covered under this warranty.

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